Group Policy Changes

Password policies was changed to zero age, length and history automatically. I am not sure what was happened on DC.
May I know what could be the reason(updates) or any other thing.?
Se LaiSystem Administrator Asked:
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Paul MacDonaldDirector, Information SystemsCommented:
Someone changed the policy explicitly, or maybe an authoritative restore was done to some point prior to the policy being put in place.
Se LaiSystem Administrator Author Commented:
I haven't seen anything... no there was no backup. Maybe someone did it.
Shaun VermaakTechnical SpecialistCommented:
Do you have audit configured as per CIS standard? If you do/did, you would be able to see events for GPO edits
Sekar ChinnakannuStaff EngineerCommented:
Did you check gpo and make sure no other GPO is overwriting, EX check domain policy.
E ATech LeadCommented:
If you have auditing enabled then you can track the Group Policy changes.

And, if you have a backup of then you can restore it - How to back up and restore Group Policy Objects using PowerShell cmdlet:

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